All names: TIC 17652431, Gaia DR2 1319053146015474688, GALEX J161923.2+305003, Gaia EDR3 1319053146015474688, PG 1617+309, PG1617+309, 2MASS J16192322+3050021, Gaia DR3 1319053146015474688, SDSS J161923.22+305002.3, LAMOST J161923.22+305002.0, SDSS J161923.22+305002.2
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 16 19 23.22 (0.03) | 16 19 23.25 | 16 19 23.23 (0.03) | ||
| Declination | 30 50 02.19 (0.03) | 30 50 02.59 | 30 50 02.21 (0.03) | ||
| Spectral type | sdOB | sdOB | |||
| Effective temperature | [K] | 36610.0 (790) | |||
| log(g) | [cgs] | 5.98 (0.1) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.74 (0.04) | 0.64 (0.05) | 0.74 (0.04) | |
| Distance | [pc] | 1359.80 (70) | 1559.09 (114) | 1359.80 (70) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -6.174 (0.04) | -6.201 (0.07) | -6.174 (0.04) | |
| Proper motion (declination) | [mas/yr] | -1.08 (0.05) | -0.977 (0.09) | -1.08 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.87 | ||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 16.43 (0.1) | 16.33 (0.008) | |||
| H magnitude | 16.33 | 16.43 (0.02) | |||
| K magnitude | 17.32 | 16.60 (0.05) | |||
| u magnitude | 15.05 (0.004) | 15.05 (0.004) | |||
| g magnitude | 15.35 (0.003) | 15.35 (0.003) | |||
| r magnitude | 15.86 (0.004) | 15.86 (0.004) | |||
| i magnitude | 16.21 (0.004) | 16.21 (0.004) | |||
| z magnitude | 16.52 (0.009) | 16.52 (0.009) | |||
| G magnitude | 15.62 (0.003) | 15.63 (0.0007) | 15.62 (0.003) | ||
| BP magnitude | 15.47 (0.004) | 15.42 (0.006) | |||
| RP magnitude | 15.91 (0.005) | 15.91 (0.003) | |||
| Pan g magnitude | 15.43 (0.002) | ||||
| Pan r magnitude | 15.88 (0.003) | ||||
| Pan i magnitude | 16.23 (0.003) | ||||
| Pan z magnitude | 16.52 (0.004) | ||||
| Pan y magnitude | 16.71 (0.006) | ||||
| E(B-V) | 0.024 | ||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.